摘要
通过一年三茬蔬菜田间试验,研究了7种不同施肥模式(即,不施肥,化肥基施,化肥基追肥各半,化肥和双氰胺基施,化肥和双氰胺基追肥各半,化肥和有机肥各半,有机肥)对蔬菜产量、硝酸盐含量及菜地氮、磷随地表径流流失的影响。结果表明,化肥和有机肥各半、化肥和双氰胺基施等两种施肥模式,不仅能使蔬菜获得较高的产量,硝酸盐含量较低,还能明显减少蔬菜种植期间菜地硝态氮、铵态氮和水溶性总磷随地表径流的流失量,从而减少了菜地土壤造成的农业面源污染,值得在今后蔬菜生产上加以推广应用。
Through field trials of three-stubble vegetable in one year, 7 different kinds of fertilization modes （i. e. Applying none fertilizer, Chemical fertilizer applied as base manure, Chemical fertilizer applied half as base manure and half as additional one, Chemical fertilizer and dicyandiamide applied as base manure, Chemi- cal fertilizer and dicyandiamide applied half as base manure and half as additional one, Applying chemical fertilizer and organic manure, Applying organic manure. ） were conducted to tested the effects of using different kinds of fertilization modes on yield and nitrate＇s content of vegetable, and loss of nitrogen and phosphorus in vegetable field. Results showed that. Used two kinds of fertilization modes, such as ＂Applying chemical fertilizer and organic manure＂ and ＂Chemical fertilizer and dicyandiamide applied as base manure＂, not only relatively higher output and lower nitrate＇s content of vegetable could be gained, but also the lost amount of nitrate-nitrogen, ammonia-nitrogen and water-solubility phosphorus, which were carried by ground runoff from vegetable field during the session of planting, was obviously reduced. Consequently, Non-point Source Pollution from Agriculture resulting from vegetable field was cut down. Therefore, those two kinds of fertilization modes are worth of being popularized on vegetable production in the future.
出处
《水土保持学报》
CSCD
北大核心
2008年第5期5-10,共6页
Journal of Soil and Water Conservation
基金
福建省自然科学基金项目(2006J0249,U0650005)
福建省科技厅重点项目(2007T0015)
关键词
施肥模式
硝酸盐含量
氮磷流失
fertilization modes
nitrate＇ s content
loss of nitrogen and phosphorus
